1 files changed, 84 insertions, 0 deletions

diff --git a/include/linux/taskstats.h b/include/linux/taskstats.h
new file mode 100644
index 000000000000..51f62759bea9
--- /dev/null
+++ b/include/linux/taskstats.h
@@ -0,0 +1,84 @@
+/* taskstats.h - exporting per-task statistics
+ *
+ * Copyright (C) Shailabh Nagar, IBM Corp. 2006
+ *           (C) Balbir Singh,   IBM Corp. 2006
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2.1 of the GNU Lesser General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef _LINUX_TASKSTATS_H
+#define _LINUX_TASKSTATS_H
+
+/* Format for per-task data returned to userland when
+ *      - a task exits
+ *      - listener requests stats for a task
+ *
+ * The struct is versioned. Newer versions should only add fields to
+ * the bottom of the struct to maintain backward compatibility.
+ *
+ *
+ * To add new fields
+ *      a) bump up TASKSTATS_VERSION
+ *      b) add comment indicating new version number at end of struct
+ *      c) add new fields after version comment; maintain 64-bit alignment
+ */
+
+#define TASKSTATS_VERSION       1
+
+struct taskstats {
+
+        /* Version 1 */
+        __u64   version;
+};
+
+
+#define TASKSTATS_LISTEN_GROUP  0x1
+
+/*
+ * Commands sent from userspace
+ * Not versioned. New commands should only be inserted at the enum's end
+ * prior to __TASKSTATS_CMD_MAX
+ */
+
+enum {
+        TASKSTATS_CMD_UNSPEC = 0,       /* Reserved */
+        TASKSTATS_CMD_GET,              /* user->kernel request/get-response */
+        TASKSTATS_CMD_NEW,              /* kernel->user event */
+        __TASKSTATS_CMD_MAX,
+};
+
+#define TASKSTATS_CMD_MAX (__TASKSTATS_CMD_MAX - 1)
+
+enum {
+        TASKSTATS_TYPE_UNSPEC = 0,      /* Reserved */
+        TASKSTATS_TYPE_PID,             /* Process id */
+        TASKSTATS_TYPE_TGID,            /* Thread group id */
+        TASKSTATS_TYPE_STATS,           /* taskstats structure */
+        TASKSTATS_TYPE_AGGR_PID,        /* contains pid + stats */
+        TASKSTATS_TYPE_AGGR_TGID,       /* contains tgid + stats */
+        __TASKSTATS_TYPE_MAX,
+};
+
+#define TASKSTATS_TYPE_MAX (__TASKSTATS_TYPE_MAX - 1)
+
+enum {
+        TASKSTATS_CMD_ATTR_UNSPEC = 0,
+        TASKSTATS_CMD_ATTR_PID,
+        TASKSTATS_CMD_ATTR_TGID,
+        __TASKSTATS_CMD_ATTR_MAX,
+};
+
+#define TASKSTATS_CMD_ATTR_MAX (__TASKSTATS_CMD_ATTR_MAX - 1)
+
+/* NETLINK_GENERIC related info */
+
+#define TASKSTATS_GENL_NAME     "TASKSTATS"
+#define TASKSTATS_GENL_VERSION  0x1
+
+#endif /* _LINUX_TASKSTATS_H */